[ios] Active web state observer in tab collection.

ios/clean/chrome/browser/ui/tab_collection/tab_collection_mediator_unittest.mm

 // Copyright 2017 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #import "ios/clean/chrome/browser/ui/tab_collection/tab_collection_mediator.h"
 
 #include "base/memory/ptr_util.h"
 #include "ios/chrome/browser/web_state_list/fake_web_state_list_delegate.h"
 #include "ios/chrome/browser/web_state_list/web_state_list.h"
 #import "ios/chrome/browser/web_state_list/web_state_list_observer_bridge.h"
@@ skipping 45 matching lines @@
 
   TabCollectionMediator* mediator_;
   std::unique_ptr<WebStateList> web_state_list_;
   FakeWebStateListDelegate web_state_list_delegate_;
   id consumer_;
 };
 
 // Tests that the consumer is notified of an insert into webStateList.
 TEST_F(TabCollectionMediatorTest, TestInsertWebState) {
   InsertWebState(2);
-  [[consumer_ verify] insertItem:[OCMArg any] atIndex:2];
+  [[consumer_ verify] insertItem:[OCMArg any] atIndex:2 selectedIndex:0];
 }
 
 // Tests that the consumer is notified that a web state has been moved in
 // webStateList.
 TEST_F(TabCollectionMediatorTest, TestMoveWebState) {
   web_state_list_->MoveWebStateAt(0, 2);
-  [[consumer_ verify] moveItemFromIndex:0 toIndex:2];
+  [[consumer_ verify] moveItemFromIndex:0 toIndex:2 selectedIndex:2];
 }
 
 // Tests that the consumer is notified that a web state has been replaced in
 // webStateList.
 TEST_F(TabCollectionMediatorTest, TestReplaceWebState) {
   auto different_web_state = base::MakeUnique<web::TestWebState>();
   web_state_list_->ReplaceWebStateAt(1, std::move(different_web_state));
   [[consumer_ verify] replaceItemAtIndex:1 withItem:[OCMArg any]];
 }
 
 // Tests that the consumer is notified that a web state has been deleted from
 // webStateList.
 TEST_F(TabCollectionMediatorTest, TestDetachWebState) {
   web_state_list_->CloseWebStateAt(1);
-  [[consumer_ verify] deleteItemAtIndex:1];
+  [[consumer_ verify] deleteItemAtIndex:1 selectedIndex:0];
 }
 
 // Tests that the consumer is notified that the active web state has changed in
 // webStateList.
 TEST_F(TabCollectionMediatorTest, TestChangeActiveWebState) {
   web_state_list_->ActivateWebStateAt(2);
-  [[consumer_ verify] selectItemAtIndex:2];
+  [[consumer_ verify] setSelectedIndex:2];
 }